School of Chemical Engineering, Anhui University of Science and Technology, Anhui, 232001, PR China.
Doctoral Program, Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology (YunTech), Yunlin, 64002, Taiwan, Republic of China.
Sci Rep. 2018 Oct 26;8(1):15835. doi: 10.1038/s41598-018-34181-5.
The cycloaliphatic epoxy resin selected for this study was 3,4-epoxycyclohexane methyl-3'4'-epoxycyclohexyl-carboxylate (EEC). Epoxy resin has numerous applications, such as varnishes, tires, and electronic materials. However, the extensive used of chlorofluorocarbon (CFC) compounds in the last century has resulted in the formation of a hole in the ozone layer. As a consequence, solar radiation is intensifying gradually; therefore, continuous irradiation by sunlight should be avoided. The results of solar radiation can exacerbate the deterioration and photolysis of compounds. Through thermogravimetry and differential scanning calorimetry, the apparent onset temperature of EEC and EEC was analyzed under UV radiation for different durations. Thermokinetic data were used to determine the parameters of thermal decomposition characteristics through simulation to assess the reaction of EEC and EEC under UV radiation for different durations. The goal of the study was to establish the parameters of thermal decomposition characteristics for the effects of UV on EEC, as well as the probability of severity of thermal catastrophe.
本研究选用的脂环族环氧树脂为 3,4-环氧环己烷甲基-3',4'-环氧环己基羧酸酯（EEC）。环氧树脂有许多用途，如清漆、轮胎和电子材料。然而，上个世纪氯氟碳化合物（CFC）的广泛使用导致了臭氧层出现空洞。因此，太阳辐射逐渐加剧；因此，应避免阳光的持续照射。太阳辐射的结果会加剧化合物的劣化和光解。通过热重分析和差示扫描量热法，分析了在不同时间的紫外线辐射下 EEC 和 EEC 的表观起始温度。通过模拟使用热动力学数据来确定热分解特性参数，以评估在不同时间的紫外线辐射下 EEC 和 EEC 的反应。该研究的目的是建立紫外线对 EEC 的热分解特性参数以及热灾难性严重程度的概率。
